(CNN) -- A former Los Angeles police officer who police say has violently threatened his former colleagues shot at least two officers early Thursday, killing one, sparking a huge manhunt in Southern California, according to authorities.
Christopher Jordan Dorner, 33, is also wanted in a double slaying Sunday in Irvine, California.
The California Highway Patrol issued an alert Thursday morning urging officers in several Southern California counties to be on the lookout for Dorner after the overnight shootings.
Two officers in Riverside were shot, one fatally, police there confirmed to CNN. CNN affiliate KTLA reported another officer was shot in Corona, California.
Irvine police identified Dorner on Wednesday as the suspect in the February 3 deaths of Keith Lawrence and Monica Quan in Irvine.
Dorner also has made violent threats against other Los Angeles police officers, the agency said Wednesday.
"I will bring unconventional and asymmetrical warfare to those in LAPD uniform whether on or off duty," Dorner allegedly wrote in a lengthy letter promising retribution against the department, where he worked from 2005 until 2008. An LAPD source provided the document to CNN.
The letter writer claimed he was terminated for reporting excessive force by a fellow officer, and said his attacks were retribution for his termination, as well as a culture of racism and violence he says continues within the department.
He called the attacks against police "a necessary evil that I do not enjoy but must partake and complete for substantial change to occur within the LAPD and reclaim my name."
Los Angeles police warned people who encounter Dorner not to approach him, saying he is likely "armed and extremely dangerous."
"Our department is implementing all measures possible to ensure the safety of our LAPD personnel, their families and the Los Angeles community, and will continue to do so until Dorner is apprehended and all threats have been abated," police said in a statement.
CNN's Mallory Simon and Deanna Hackney contributed to this report.

I'm just saying there's all sorts of shit i could be doing! I could watch a movie, play a video game, rub one out, read a book, learn a foreign language, etc.. But i'm still watching the assholes because i love them, and I hate myself

LOS ANGELES (CNN) — UPDATE: According to a police source close to the situation, ex-LAPD officer Christopher Jordan Dorner was shot and killed by a San Bernadino Sheriff's Department sniper.

Authorities then shot tear gas into the cabin housing the fugitive. Due to Dorner's believed experience with ordnance, authorities are letting the structure burn before entering.

Two sheriff's deputies have been wounded in a shootout with a suspect believed to be renegade ex-Los Angeles police officer Christopher Jordan Dorner, a high-ranking law official with knowledge of the investigation said Tuesday.

One of the deputies injured in Tuesday's shootout believed to be with ex-LAPD officer Christopher Jordan Dorner has died, according to CNN affiliates and the Los Angeles Times.

Dorner had stolen a vehicle from a house in the Big Bear area when he came upon a police roadblock, the source said. Dorner opened fire on the deputies and later was surrounded by authorities, the source said. The deputies were airlifted to a hospital with "unknown injuries," according to a statement from the San Bernadino County Sheriff's Department.

He was barricaded inside a cabin as officers moved in, the statement said.

The sheriff issued a statement asking news helicopters to pull back from the area because "gunfire is being exchanged."

LISTEN TO AUDIO OF THE GUNFIRE HERE

Authorities have been searching for Dorner since last week, after he was named as the suspect in the shooting deaths of the daughter of his police union representative and her fiance. Police also say he killed one police officer in Riverside and wounded two others on February 7.

The violent spree, authorities say, was part of Dorner's campaign of vigilante justice for what he believes was his unfair termination.

Los Angeles police spokesman Lt. Andy Neiman said Tuesday that the department had received more than 1,000 tips on Dorner's whereabouts. Some of the calls have come from Dorner's acquaintances or people who think they have spotted the fugitive.

The pace of tips being given to investigators increased by 400% after the city of Los Angeles put up a $1 million reward on Sunday for information leading to Dorner's arrest and conviction, Neiman said.

The search for the 270-pound, 6-foot Dorner has focused on the Big Bear Lake area, where authorities say his burning truck was discovered last week.

Over the past two weeks, the search, considered one of the largest in the history of Southern California, has taken authorities from Orange County to the border of Mexico and from Los Angeles to Big Bear Lake.

"Big Bear's still where we're looking right now," Neiman said Tuesday. The search area surrounds where Dorner's burning truck was discovered last Thursday .

"Until we can confirm that he's either there or he's not there, this investigation has to stick with what we know and what we know is that we found evidence that he was there," Neiman said.

While the LAPD spokesman told reporters he was "not ready to confirm" that a man seen in security camera video from a Southern California sporting goods store was Dorner, the Los Angeles Times quoted unnamed law enforcement sources saying it was him.

The video, published Monday by the celebrity news website TMZ.com, shows the man carrying what appears to be scuba equipment at the Sports Chalet store in Torrance, California, on February 1, two days before the killings of Monica Quan, the daughter of the police union rep, and her fiancÚ, Keith Lawrence.

A "no bail" arrest warrant was issued for Dorner after the Riverside County district attorney filed a murder charge Monday against him in the killing of Riverside Police Officer Michael Crain.

"That allows him to be apprehended anywhere within California, out of state or out of the country," District Attorney Paul Zellerbach told reporters Monday.

The murder charge is accompanied by two "special circumstances," including killing a police officer on duty and firing a weapon from a vehicle.

Dorner was also charged with the attempted murder of three other police officers, including another Riverside officer who was wounded when Crain was killed. That officer, whose name has not been released, is in a lot of pain and faces "many surgeries," Riverside Police Chief Sergio Diaz said.

Dorner is also accused of opening fire on two LAPD police officers, wounding one, in the suburb of Corona.

There has been speculation, based in part on an arrest warrant affidavit filed last week, that Dorner could have crossed state lines into Nevada or made his way to Mexico.

LAPD reopens case that led to Dorner's dismissal

Over the weekend, LAPD said it was reopening the case that resulted in his termination.

Dorner accused his training officer of kicking a mentally ill man during an arrest in 2007. The LAPD ruled the complaint unfounded and kicked Dorner off the force for filing a false complaint.

Dorner challenged his firing in court and lost.

In a manifesto released last week, Dorner blamed racism and corruption in the LAPD for his termination and vowed to wage "unconventional and asymmetrical warfare" against LAPD officers and their families. He called it a "last resort" to clear his name and strike back at a department he says mistreated him.

LAPD Chief Charlie Beck had a different term for it Sunday.

"This is an act -- and make no mistake about it -- of domestic terrorism," he told reporters Sunday. "This is a man who has targeted those that we entrust to protect the public. His actions cannot go unanswered."

Targeting police

Authorities say Dorner began making good on his threats on February 3 when he allegedly killed Quan, 27, and Lawrence in an Irvine parking lot, south of Los Angeles.

Randal Quan represented Dorner during the disciplinary hearing that resulted in his firing. The officer was among dozens named in the manifesto.

The retired officer told investigators he received a call from someone identifying himself as Dorner who told him he "should have done a better job of protecting his daughter," according to a federal arrest warrant affidavit.

Investigators traced the call to Vancouver, Washington, but based on the timing of other sightings, they don't believe Dorner was in Vancouver at the time, the affidavit states.

Days later, early Thursday morning, Dorner allegedly opened fire on two LAPD police officers, wounding one, in the suburban city of Corona.

Roughly 20 minutes later, Dorner allegedly fired on two officers in the nearby city of Riverside, killing Crain and wounding another.

Since then, the LAPD has provided security and surveillance details for more than 50 police officers and their families -- many of whom were named in the manifesto.

Additionally, the LAPD is no longer releasing the police chief's schedule to the public or the media.

'Ghosts' of the LAPD's past

It was Dorner's allegations of racism at the LAPD that led Beck over the weekend to reopen the investigation into his claims.

Beck said he was not doing it to "appease a murderer" but out of concern that Dorner's allegations will resurrect a painful part of the department's history.

For years, the LAPD was dogged by complaints of racism and corruption. In 1965 and 1992, the city was rocked by racial riots that were sparked, in part, by claims of police racism and brutality.

"I hear the same things you hear: The ghosts of the past of the Los Angeles Police Department," Beck said Sunday. "I hear that people think maybe there is something to what he says, and I want to put that to rest."

Despite numerous reviews of Dorner's case, he said it has "never been reviewed by me."

"If there is anything new, we will deal with it, and we will deal with it in a public way," Beck said.

I'm just saying there's all sorts of shit i could be doing! I could watch a movie, play a video game, rub one out, read a book, learn a foreign language, etc.. But i'm still watching the assholes because i love them, and I hate myself

Just waiting for them to say the body was so mangled by the fire to prevent positive identification and dental/DNA records have been inconclusive.....

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